It’s summer 2018, and Britain is in the grip of a searing heatwave. After months of weather that is strikingly hot, the ground is barren and parched. But in the skies above, archaeologists are making some startling revelations about the landscape. These are secrets that have lain hidden for thousands of years.

Throughout June, July and much of August 2018, Britain basked in record-breaking temperatures, with highs topping 35 °C. In fact, it was the hottest summer ever recorded in England. The average of 17.2 °C beat the previous record set during the famous heatwave of 1976.

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